2. The role of preventive maintenance

Preventive maintenance is an important component of the maintenance defined in the standard NF EN 13306 as "all technical, administrative, and management actions during the life cycle of an asset, designed to maintain or restore it to a state in which it can perform the required function". Given the wide variety of terms used in maintenance actions, the figure 3 presents a tree structure that provides a typology of the different terms used in maintenance. Additional information is provided in